<template>
  <div class="app-container calendar-list-container">
    <div class="filter-container">
      <el-button-group>
        <el-button v-if="menuManager_btn_add" type="primary" icon="plus" @click="handlerAdd">添加</el-button>
        <el-button v-if="menuManager_btn_edit" type="primary" icon="edit" @click="handlerEdit">编辑</el-button>
        <el-button v-if="menuManager_btn_del" type="primary" icon="delete" @click="handleDelete">删除</el-button>
      </el-button-group>
    </div>

    <el-row>
      <el-col :span="4" style="margin-top:15px;">
        <el-input
          v-model="filterText"
          placeholder="输入关键字进行过滤"/>
        <el-tree
          ref="menuTree"
          :data="treeData"
          :props="defaultProps"
          :filter-node-method="filterNode"
          class="filter-tree"
          node-key="id"
          highlight-current
          default-expand-all
          @node-click="getNodeData"
        />
      </el-col>
      <el-col :span="20" style="margin-top:15px;">
        <el-card class="box-card">
          <el-form ref="form" :label-position="labelPosition" :model="form" label-width="80px">
            <el-form-item label="路径编码" prop="code">
              <el-input v-model="form.code" :disabled="formEdit" placeholder="前端页面唯一标识"/>
            </el-form-item>
            <el-form-item label="标题" prop="title">
              <el-input v-model="form.title" :disabled="formEdit" placeholder="请输入标题"/>
            </el-form-item>
            <el-form-item label="父级节点" prop="parentId">
              <el-input v-model="form.parentId" :disabled="formEdit" placeholder="请输入父级节点" readonly/>
            </el-form-item>
            <el-form-item label="图标" prop="icon">
              <el-input v-model="form.icon" :disabled="formEdit" placeholder="请输入图标"/>
            </el-form-item>
            <el-form-item label="资源路径" prop="href">
              <el-input v-model="form.href" :disabled="formEdit" placeholder="前端页面路径"/>
            </el-form-item>
            <el-form-item label="类型" prop="type">
              <el-select v-model="form.type" :disabled="formEdit" class="filter-item" placeholder="请输入资源请求类型">
                <el-option v-for="item in typeOptions" :key="item" :label="item" :value="item"/>
              </el-select>
            </el-form-item>
            <el-form-item label="排序" prop="orderNum">
              <el-input v-model="form.orderNum" :disabled="formEdit" placeholder="请输入排序"/>
            </el-form-item>
            <el-form-item label="描述" prop="description">
              <el-input v-model="form.description" :disabled="formEdit" placeholder="请输入描述"/>
            </el-form-item>
            <el-form-item v-if="formStatus == 'update'">
              <el-button type="primary" @click="update">更新</el-button>
              <el-button @click="onCancel">取消</el-button>
            </el-form-item>
            <el-form-item v-if="formStatus == 'create'">
              <el-button type="primary" @click="create">保存</el-button>
              <el-button @click="onCancel">取消</el-button>
            </el-form-item>
          </el-form>
        </el-card>
        <el-card class="box-card">
          <span>按钮或资源</span>
          <menu-element ref="menuElement" :menu-id="currentId"/>
        </el-card>
      </el-col>
    </el-row>
  </div>
</template>

<script>
import {
  fetchTree, getObj, addObj, delObj, putObj
} from '@/api/admin/menu/index'
import { mapGetters } from 'vuex'
export default {
  name: 'SysMenu',
  components: {
    'menu-element': () => import('./components/menuElement')
  },
  data() {
    return {
      filterText: '',
      list: null,
      total: null,
      formEdit: true,
      formAdd: true,
      formStatus: '',
      showElement: false,
      typeOptions: ['menu', 'dirt'],
      listQuery: {
        name: undefined
      },
      treeData: [],
      defaultProps: {
        children: 'children',
        label: 'title'
      },
      labelPosition: 'right',
      form: {
        code: undefined,
        title: undefined,
        parentId: undefined,
        href: undefined,
        icon: undefined,
        orderNum: undefined,
        description: undefined,
        path: undefined,
        enabled: undefined,
        type: undefined,
        attr1: undefined
      },
      currentId: -1,
      menuManager_btn_add: false,
      menuManager_btn_edit: false,
      menuManager_btn_del: false
    }
  },
  computed: {
    ...mapGetters([
      'elements'
    ])
  },
  watch: {
    filterText(val) {
      this.$refs.menuTree.filter(val)
    }
  },
  created() {
    this.getList()
    this.menuManager_btn_add = this.elements['menuManager:btn_add']
    this.menuManager_btn_del = this.elements['menuManager:btn_del']
    this.menuManager_btn_edit = this.elements['menuManager:btn_edit']
  },
  methods: {
    getList() {
      fetchTree(this.listQuery).then(data => {
        this.treeData = data.data
      })
    },
    filterNode(value, data) {
      if (!value) return true
      return data.label.indexOf(value) !== -1
    },
    getNodeData(data) {
      if (!this.formEdit) {
        this.formStatus = 'update'
      }
      getObj(data.id).then(response => {
        this.form = response.data
      })
      this.currentId = data.id
      this.showElement = true
      this.$refs.menuElement.menuId = data.id
      this.$refs.menuElement.getList()
    },
    handlerEdit() {
      if (this.form.id) {
        this.formEdit = false
        this.formStatus = 'update'
      }
    },
    handlerAdd() {
      this.resetForm()
      this.formEdit = false
      this.formStatus = 'create'
    },
    handleDelete() {
      this.$confirm('此操作将永久删除, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        delObj(this.currentId).then(() => {
          this.getList()
          this.resetForm()
          this.onCancel()
          this.$notify({
            title: '成功',
            message: '删除成功',
            type: 'success',
            duration: 2000
          })
        })
      })
    },
    update() {
      putObj(this.form.id, this.form).then(() => {
        this.getList()
        this.$notify({
          title: '成功',
          message: '更新成功',
          type: 'success',
          duration: 2000
        })
      })
    },
    create() {
      addObj(this.form).then(() => {
        this.getList()
        this.$notify({
          title: '成功',
          message: '创建成功',
          type: 'success',
          duration: 2000
        })
      })
    },
    onCancel() {
      this.formEdit = true
      this.formStatus = ''
    },
    resetForm() {
      this.form = {
        code: undefined,
        title: undefined,
        parentId: this.currentId,
        icon: undefined,
        href: undefined,
        type: undefined,
        orderNum: undefined,
        description: undefined
      }
    }
  }
}
</script>

